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Nuummite
Nuummite

Willemite
Willemite



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Nuummite
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Willemite

Nuummite and Willemite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.18-3.37
Conchoidal
Perfect on 210
5.5-6
Na(Fe,Mg)7(AlSi7O22)(OH)2
 
-
-
-
3.89-4.18
Conchoidal, Uneven
{0001}, {11 2 0} imperfect
5.5
Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Nuummite and Willemite Chemical Formula

While comparing Nuummite and Willemite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Nuummite and Willemite chemical formula.

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Nuummite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nuummite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nuummite Vs Willemite during the identification of gemstone. Specific gravity of Nuummite is whereas that of Willemite is .